रिक्थं पुत्रवतः पुत्रा दुहितरो वा धर्मिष्ठेषु विवाहेषु जाताः ॥ कZ_०३.५.१० ॥
rikthaṃ putravataḥ putrā duhitaraḥ vā dharmiṣṭheṣu vivāheṣu jātāḥ
The inheritance of a man who has issue belongs to his sons; or to his daughters born of lawful marriages.
It creates a clear evidentiary threshold for legitimacy, helping officials decide claims without open-ended factual inquiries.